While baritone tuning isn't widely standardized yet, the tuning is usually understood as B E A D F# B or A D G C E A, and that's what you'll usually find in packaged sets.
That said, I think it's about intent. If you play a baritone guitar like a bass, you can make the argument that at that point, it's a short scale bass. The large majority of artists that play a baritone guitar do not play it in this fashion, but use it either for just a lowered tuning or to help augment their sound (if playing with a standard tuned electric). But at the end of the day, it's still mechanically a baritone guitar, no matter what you do with it.
The same argument can be applied to extended range guitars, where 8 strings easily fall into the lower end of the bass frequency. You can comp a fairly convincing bass sound with one of those, but it's still mechanically a guitar.
I agree with that, but then how do you classify folks like Royal blood, plays short scale bass and uses effects to cover bass and guitar parts. Cause I have two musicman basses, no guitars and and I have an effect loop for a similar vibe for my 1 guitar band.